/*
 * Copyright 2019 ABSA Group Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package za.co.absa.spline.harvester.builder

import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.catalyst.TableIdentifier

object SourceUri {
  def forKafka(topic: String): String = s"kafka:$topic"

  def forJDBC(connectionUrl: String, table: String): String = s"$connectionUrl:$table"

  def forTable(tableIdentifier: TableIdentifier)
    (session: SparkSession): String = {
    val catalog = session.catalog
    val TableIdentifier(tableName, maybeTableDatabase) = tableIdentifier
    val databaseName = maybeTableDatabase getOrElse catalog.currentDatabase
    val databaseLocation = catalog.getDatabase(databaseName).locationUri.stripSuffix("/")
    s"$databaseLocation/${tableName.toLowerCase}"
  }
}
